11:15pm Update on Idalia: Strengthening Continues

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Hurricane Warning for Western Cuba

The wind speed is up to 60 mph (sustained) with a central pressure of 992 millibars. 

The storm is more or less stationary but will begin moving north tomorrow morning. 

Red is a hurricane warning for western Cuba. 

The entire pink area (hurricane watch) should realize that hurricane-force winds are possible. There will also be a storm surge over the entire watch area. I continue to believe that there is a more than 50% maximum winds will be 100 mph or stronger. I now also believe there is a 1/3 chance that winds will be 120 mph or stronger. 

The rest of the information in the post below is valid. 

I'll update again late Monday morning.